Optoma NuForce BE Sport4 evaluation

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The NuForce BE Sport4 wi-fi earbuds are that uncommon discover: earbuds which are good for mainly all conditions.

Whereas over-ear headphones typically wrestle to compete with the portability of their smaller counterparts, earbuds face their very own battle to supply ample audio high quality in a design that is a fraction of the dimensions.

However with their deal with sensible design and a lift in audio functionality over their predecessors, the NuForce BE Sport3 earbuds, the BE Sport4s handle to punch effectively above their negligible weight.

Design and match

The NuForce BE Sport4 earbuds look exceptionally sensible. They’re product of a shiny black metallic, with lime inexperienced detailing for a delicate splash of colour.

A excessive diploma of personalization is enabled by the included fittings, which let you tailor the match of the earbuds to fit your ears. 

There are three pairs of silicon eartips in several sizes, and a beneficiant 9 pairs of ‘earwings’, which function a protruding part of silicon to steadiness them contained in the ear. This enables the BE Sport4s to stay in place even throughout vigorous train, whereas remaining persistently comfy.

The BE Sport4 earbuds are predictably mild at simply 15g, however they’re substantial sufficient to really feel sturdy. The tethered design does imply, nonetheless, that taking one earbud out will trigger the burden to drag on the opposite, and we discovered them inconceivable to make use of solely in a single ear – you want to both have them each in, or each out. 

The power to attach the earbuds magnetically means you’re by no means susceptible to dropping them, though given the benefit with which you’ll be able to join them round your neck we hardly discovered ourselves placing them away completely.

Out of the field you additionally get a mushy carry pouch, a mini USB cable for charging, and an extra pair of ‘TwinBlade’ eartips for anybody needing much more help holding their earbuds in firmly.

As soon as we might adjusted the match we discovered the earbuds comfy and steady to put on. They sat naturally in our ears whereas taking strain off the interior canal, all with out compromising the standard and immediacy of the audio.

Like their well-received predecessors, the BE Sport 3s, these earbuds are splendidly multi-purpose. Whereas they’re supposed primarily to be used throughout train, their mild weight and portability make them superb to be used in your commute, or on the go typically. 

Some could choose Bluetooth earbuds which are outright untethered, and Optoma does make ‘truly wireless’ choices such because the BE Free8, or the extra low-budget BE Free5.

However for our half we discover the compromise of a brief connecting cable massively sensible, because it retains our earbuds collectively with out changing into a nuisance or getting simply tangled.


The NuForce BE Sport four earbuds are supposed primarily to be used throughout train – therefore the identify – and so they completely ship in that respect.

Whether or not utilizing them for a mild jog on the treadmill or a fast-paced circuits session, we discovered the earbuds to be splendidly steady, whereas by no means changing into uncomfortable or overheating (even when the consumer was).

Whereas you may be competing with outdoors noise – which, in a public space or crowded gymnasium, might be typically – there’s nonetheless an efficient stage of noise isolation, and the audio is sort of surprisingly succesful throughout each excessive and low frequencies.

Each the pop-tinged vocals and throbbing synth of Janelle Monae’s Make Me Really feel, for example, got here throughout equally clearly, with sufficient element to select the snapping fingers of the opening verse, even in noisy gymnasium environments. 

The result’s a massively succesful soundstage that may cater to all genres of music, though it is best suited to the kind of upbeat pop normally discovered within the gymnasium. 

Moreover, the sound isolation isn’t intensive sufficient to place you at risk of not listening to approaching visitors, or the shouts of weightlifters in your quick neighborhood.

The principle technical innovation in these earbuds is the implementation of graphene-coated drivers; graphene is lighter and provides higher conductivity than normal supplies, that means the earbuds create much less sound distortion and require much less battery energy to run.

The BE Sport4 earbuds have claimed 10-hour battery life, which we discovered to be fairly near the mark in our time with them, and from empty you will get two hours of use from only a 15-minute cost – superb for these needing a fast top-up whereas they placed on their trainers and pack a gymnasium package.

By way of water and sweat resistance the BE Sport4s are rated at a sports-friendly IPX-5 – so that you gained’t wreck them in case you go working within the rain, however they’re unlikely to outlive a dip within the swimming pool.


It’s inconceivable to not examine the BE Sport4 earbuds to their predecessors, the BE Sport3s, which we additionally awarded 5 stars IN 2017. With a concerted effort to spice up the audio high quality, albeit with a corresponding leap in value – from £64 to £90 – Optoma has managed to outdo itself.

The sound high quality is well spectacular sufficient to warrant on a regular basis use outdoors of the gymnasium, and sends a warning shot to producers of headphones on this value vary:  construct and audio high quality don’t have to be sacrificed to be able to preserve earbuds reasonably priced.

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